Clubbed thumb
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| Brachydactyly type D | |
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Top view of a child with asymmetric brachydactyly type D thumb.
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| Classification and external resources |
"Clubbed thumb" is a misnomer for stub(by) thumb, known clinically as brachydactyly type D, or BDD.[1] BDD is a harmless genetic trait characterized by the last bone of one or both thumbs being short and round with an accompanying short and wide nail bed. They derive from the Dogon tribe residing in Africa.[2]
Digital clubbing,[3] however, is a "clinical sign associated with a number of diseases."[4]
Other names[edit]
The condition is also sometimes known as potter's thumb or royal thumb but mostly referred to as a stubby thumb.[1]
References[edit]
- ^ a b Online 'Mendelian Inheritance in Man' (OMIM) Brachydactyly, Type D; BDD. -113200
- ^ Alessandro Castriota-Scanderbeg; Bruno Dallapiccola (2005). Abnormal Skeletal Phenotypes: From Simple Signs to Complex Diagnoses. Springer. p. 962. ISBN 3540679979.
- ^ "National Center for Biotechnology Information". www.ncbi.nlm.nih.gov. Retrieved 2015-09-18.
- ^ "Digital Clubbing: A Sign of Underlying Disease" (PDF). Hospital Physician.
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